Specifications - Extech Instruments 407850 User Manual

Introduction
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Congratulations on your purchase of the Extech 407850 Vibration Meter. The 407850
can confirm normal vibration levels and detect abnormal levels in industrial machinery
due to poor balancing, misalignment, structural compromises, and other factors. Careful
use of this meter will provide years of reliable service.

Specifications

General Specifications
Display
Measurement ranges
Frequency range
Accuracy
Calibration points
Sampling time
Data output
Data Hold
Min/Max Memory
Auto Power OFF
Low battery indication
Power supply
Power consumption
Operating Temperature
Operating Humidity
Dimensions
Weight
3-1/2 digit LCD
Velocity: 0.02 to 7.87 inches/sec (0.5 to 199.9 mm/sec)
2
Acceleration: 2 to 656 ft/s (0.5 to 199.9 m/s
10Hz to 1KHz (frequency sensitivity meets ISO-2954)
± (5% of reading + 2 digits)
Velocity: 50mm/sec @ 160Hz
2
Acceleration: 50m/s @ 160Hz
One (1) second approx.
Isolated serial RS-232 PC Interface
Freezes displayed reading
Meter stores highest and lowest readings for later recall
Meter automatically shuts off after 30 minutes of inactivity
Battery symbol appears on the LCD
9V Battery
6mA DC approx.
o o
32 to 122 F (0 to 50 C)
Less than 80% RH
Meter: 7.1 x 2.8 x 1.3" (180 x 72 x 32mm)
Probe: 0.75" (19mm) diameter x 0.83" (21mm)
Meter: Approx. 0.5 lbs (230g)
Probe with magnetic base: 0.09 lbs (38g)
2
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Model 407850 Version 1.2 December 2005